Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2018/198592
Kind Code:
A1
Abstract:
A fuel injection valve (10) is provided with a fixed core (400) and a movable core (300). The fixed core includes a fixed-side high-hardness section (410) having a high hardness, and a fixed-side low-hardness section (420) having a hardness lower than that of the fixed-side high-hardness section. The movable core includes a movable-side high-hardness section (310) having a high hardness, and a movable-side low-hardness section (320) having a hardness lower than that of the movable-side high-hardness section. When a current is supplied to a coil (600), the resulting magnetic attractive force causes the movable core to move together with a needle (200) to the fixed core side, and causes the movable-side high-hardness section to abut against the fixed-side high-hardness section.
Inventors:
TAKAKI NIRO (JP)
ARIKAWA FUMIAKI (JP)
FUJINO TOMOKI (JP)
ARIKAWA FUMIAKI (JP)
FUJINO TOMOKI (JP)
Application Number:
PCT/JP2018/010587
Publication Date:
November 01, 2018
Filing Date:
March 16, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M51/06
Foreign References:
| JP2000170619A | 2000-06-20 | |||
| EP2719886A1 | 2014-04-16 | |||
| JP2004088891A | 2004-03-18 | |||
| JP2017031963A | 2017-02-09 | |||
| JP2002349745A | 2002-12-04 | |||
| US20120153034A1 | 2012-06-21 |
Attorney, Agent or Firm:
KAMATA, Toru et al. (JP)
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